RT info:eu-repo/semantics/article
T1 Determination of phthalic acid esters in water samples by hollow fiber liquid-phase microextraction prior to gas chromatography tandem mass spectrometry
A1 González Sálamo, Javier
A1 González Curbelo, Miguel Angel
A1 Socas Rodríguez, Bárbara
A1 Hernández Borges, Javier
A1 Rodríguez Delgado, Miguel Ángel
A2 Química
K1 Phthalic acid esters
K1 Water samples
K1 Hollow fiber liquid-phase microextraction
K1 Gas chromatography tandem mass spectrometry
AB A new hollow fiber liquid-phase microextraction (HF-LPME) method has been developed for theextraction of a group of phthalic acid esters (PAEs) of interest from different water samples prior togas chromatography tandem mass spectrometry analysis. HF-LPME was carried out using 1-octanol asextraction solvent followed by a back extraction step with cyclohexane. The different parameters thataffect HF-LPME such as sample pH, ionic strength, extraction time, stirring rate, extraction temperatureand back extraction conditions were investigated. The optimized conditions involved the extraction of10 mL of sample without pH adjustment or addition of salt during 75 min under a stirring of 850 rpm at60  C and subsequent desorption with 200 mL of cyclohexane for 10 min in an ultrasonic bath. Themethod was validated in terms of calibration and recovery studies using dibutyl phthalate-d4 as internalstandard. The developed procedure gave satisfactory recovery (74e120%) and relative standard deviationvalues (<20%) for the studied PAEs in mineral, tap, pond and waste water samples
YR 2018
FD 2018
LK http://riull.ull.es/xmlui/handle/915/36088
UL http://riull.ull.es/xmlui/handle/915/36088
LA en
NO Chemosphere 201 (2018) 254-261https://doi.org/10.1016/j.chemosphere.2018.02.180
DS Repositorio institucional de la Universidad de La Laguna
RD 22-may-2024